US10905838B2 - Ventilator with error detection for flow sensors - Google Patents

Ventilator with error detection for flow sensors Download PDF

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Publication number
US10905838B2
US10905838B2 US15/757,208 US201615757208A US10905838B2 US 10905838 B2 US10905838 B2 US 10905838B2 US 201615757208 A US201615757208 A US 201615757208A US 10905838 B2 US10905838 B2 US 10905838B2
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Prior art keywords
flow sensor
value
proximal
measurement signal
ventilation device
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US15/757,208
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US20190192796A1 (en
Inventor
Christoph Schranz
Karolin Franke
Dominik Novotni
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Hamilton Medical AG
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Hamilton Medical AG
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Assigned to HAMILTON MEDICAL AG reassignment HAMILTON MEDICAL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRANKE, Karolin, NOVOTNI, DOMINIK, SCHRANZ, Christoph
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0051Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057Pumps therefor
    • A61M16/0066Blowers or centrifugal pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022Control means therefor
    • A61M16/024Control means therefor including calculation means, e.g. using a processor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0463Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816Joints or connectors
    • A61M16/0841Joints or connectors for sampling
    • A61M16/0858Pressure sampling ports
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • A61M16/203Proportional
    • A61M16/204Proportional used for inhalation control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • A61M16/203Proportional
    • A61M16/205Proportional used for exhalation control
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10Preparation of respiratory gases or vapours
    • A61M16/14Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16Devices to humidify the respiration air
    • A61M16/162Water-reservoir filling system, e.g. automatic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/003Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/18General characteristics of the apparatus with alarm
US15/757,208 2015-09-03 2016-09-01 Ventilator with error detection for flow sensors Active 2037-09-16 US10905838B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015216895 2015-09-03
DE102015216895.6A DE102015216895A1 (de) 2015-09-03 2015-09-03 Beatmungsvorrichtung mit Fehlererfassung für Durchflusssensoren
DE102015216895.6 2015-09-03
PCT/EP2016/070572 WO2017037152A1 (de) 2015-09-03 2016-09-01 Beatmungsvorrichtung mit fehlererfassung für durchflusssensoren

Publications (2)

Publication Number Publication Date
US20190192796A1 US20190192796A1 (en) 2019-06-27
US10905838B2 true US10905838B2 (en) 2021-02-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US15/757,208 Active 2037-09-16 US10905838B2 (en) 2015-09-03 2016-09-01 Ventilator with error detection for flow sensors

Country Status (6)

Country Link
US (1) US10905838B2 (ja)
EP (1) EP3344317B1 (ja)
JP (1) JP6840736B2 (ja)
CN (1) CN107949412B (ja)
DE (1) DE102015216895A1 (ja)
WO (1) WO2017037152A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11027079B2 (en) * 2016-06-22 2021-06-08 Loewenstein Medical Technology S.A. Ventilation device and method
US11709155B2 (en) 2017-09-18 2023-07-25 Waters Technologies Corporation Use of vapor deposition coated flow paths for improved chromatography of metal interacting analytes
US11709156B2 (en) 2017-09-18 2023-07-25 Waters Technologies Corporation Use of vapor deposition coated flow paths for improved analytical analysis
DE102017217858A1 (de) * 2017-10-06 2019-04-11 Hamilton Medical Ag Beatmungsvorrichtung mit automatisierter Erfassung eines Fehlers eines Durchflusssensors unter Berücksichtigung von Spontanatmung
DE102018121080A1 (de) * 2018-08-29 2020-03-05 B. Braun Avitum Ag Verfahren und Vorrichtung zur intermittierenden, pulsierenden Proportionierung einer Dialysierflüssigkeitsmischung
EP3649929A1 (en) * 2018-11-06 2020-05-13 Koninklijke Philips N.V. An apparatus for use with a wearable cuff
US11918936B2 (en) 2020-01-17 2024-03-05 Waters Technologies Corporation Performance and dynamic range for oligonucleotide bioanalysis through reduction of non specific binding
DE102021116062A1 (de) 2021-06-22 2022-12-22 Hamilton Medical Ag Beatmungsvorrichtung mit automatisierter Korrektur proximal gemessener Atemgasflusswerte während des Beatmungsbetriebs
CN116531628B (zh) * 2023-06-13 2023-12-29 大庆油田总医院 一种智能麻醉呼吸安全监控系统及方法

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09173456A (ja) 1995-12-01 1997-07-08 Siemens Elema Ab 呼吸装置の制御方法および呼吸装置
US5704345A (en) * 1993-11-05 1998-01-06 Resmed Limited Detection of apnea and obstruction of the airway in the respiratory system
JPH10503675A (ja) 1994-07-28 1998-04-07 コマセック アンテルナショナル エス. エー. 呼吸装置の作用を検査する方法
JP2001245984A (ja) 2000-01-25 2001-09-11 Siemens Elema Ab 人工呼吸器
WO2003055552A1 (de) 2001-12-28 2003-07-10 Müfa Ag Beatmungsvorrichtung
JP2006507905A (ja) 2002-12-02 2006-03-09 スコット・ラボラトリーズ・インコーポレイテッド 呼吸監視システムおよび方法
US7044129B1 (en) * 2003-09-03 2006-05-16 Ric Investments, Llc. Pressure support system and method
US7115097B2 (en) * 2003-10-09 2006-10-03 Johnson Joseph L Positive airway pressure notification system for treatment of breathing disorders during sleep
US20070062533A1 (en) * 2005-09-21 2007-03-22 Choncholas Gary J Apparatus and method for identifying FRC and PEEP characteristics
US20070157930A1 (en) 2006-01-10 2007-07-12 Viasys Manufacturing, Inc. System and method for circuit compliance compensated volume assured pressure control in a patient respiratory ventilator
US20080257350A1 (en) 2007-04-18 2008-10-23 Shenzhen Mindray Bio-Medical Electronics Co., Ltd Respirator and method for calibrating flow rate measuring component thereof
WO2009119449A1 (ja) 2008-03-26 2009-10-01 国立大学法人 九州工業大学 気管チューブ維持管理システム
US20090272381A1 (en) 2006-09-14 2009-11-05 Raffaele Dellaca Apparatus for respiratory support and non-invasive detection of alveolar derecruitment for patients suffering from respiratory failure
JP2010501289A (ja) 2006-08-30 2010-01-21 レスメド・リミテッド Cpap治療中の漏出の判定
JP2011038793A (ja) 2009-08-06 2011-02-24 High Pressure Gas Safety Institute Of Japan ガス遮断装置
US20110265793A1 (en) * 2010-04-30 2011-11-03 Haveri Heikki Antti Mikael Method and arrangement for maintaining volume of breathing gas in a desired level
US8528552B2 (en) * 2008-12-01 2013-09-10 Dräger Medical GmbH SPO2 control with adaptive linear compensation
CN103432671A (zh) 2007-01-23 2013-12-11 菲舍尔和佩克尔保健有限公司 在气体通路的患者端设有rfid标签传感器的加湿设备
US9259545B2 (en) * 2011-11-05 2016-02-16 Drägerwerk AG & Co. KGaA Process for checking the function of a respiration system
US20160193438A1 (en) * 2013-09-04 2016-07-07 Fisher & Paykel Healthcare Limited Improvements to flow therapy
US20180104426A1 (en) * 2015-03-31 2018-04-19 Fisher & Paykel Healthcare Limited Methods and apparatus for oxygenation and/or co2 removal
US9999742B2 (en) * 2012-04-10 2018-06-19 Fisher & Paykel Healthcare Limited Combination CPAP and resuscitation systems and methods
US10279133B2 (en) * 2011-07-02 2019-05-07 Drägerwerk AG & Co. KGaA Process for checking the function of a respiration system
US10350379B2 (en) * 2008-06-05 2019-07-16 ResMed Pty Ltd Treatment of respiratory conditions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH701755B1 (de) 2009-09-07 2014-03-14 Hamilton Medical Ag Durchflussmessfühler.

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704345A (en) * 1993-11-05 1998-01-06 Resmed Limited Detection of apnea and obstruction of the airway in the respiratory system
JPH10503675A (ja) 1994-07-28 1998-04-07 コマセック アンテルナショナル エス. エー. 呼吸装置の作用を検査する方法
JPH09173456A (ja) 1995-12-01 1997-07-08 Siemens Elema Ab 呼吸装置の制御方法および呼吸装置
JP2001245984A (ja) 2000-01-25 2001-09-11 Siemens Elema Ab 人工呼吸器
WO2003055552A1 (de) 2001-12-28 2003-07-10 Müfa Ag Beatmungsvorrichtung
AU2002360922A1 (en) 2001-12-28 2003-07-15 Mufa Ag Respiratory device
JP2006507905A (ja) 2002-12-02 2006-03-09 スコット・ラボラトリーズ・インコーポレイテッド 呼吸監視システムおよび方法
US7044129B1 (en) * 2003-09-03 2006-05-16 Ric Investments, Llc. Pressure support system and method
US7115097B2 (en) * 2003-10-09 2006-10-03 Johnson Joseph L Positive airway pressure notification system for treatment of breathing disorders during sleep
US20070062533A1 (en) * 2005-09-21 2007-03-22 Choncholas Gary J Apparatus and method for identifying FRC and PEEP characteristics
US20070157930A1 (en) 2006-01-10 2007-07-12 Viasys Manufacturing, Inc. System and method for circuit compliance compensated volume assured pressure control in a patient respiratory ventilator
JP2010501289A (ja) 2006-08-30 2010-01-21 レスメド・リミテッド Cpap治療中の漏出の判定
US20090272381A1 (en) 2006-09-14 2009-11-05 Raffaele Dellaca Apparatus for respiratory support and non-invasive detection of alveolar derecruitment for patients suffering from respiratory failure
CN103432671A (zh) 2007-01-23 2013-12-11 菲舍尔和佩克尔保健有限公司 在气体通路的患者端设有rfid标签传感器的加湿设备
US20080257350A1 (en) 2007-04-18 2008-10-23 Shenzhen Mindray Bio-Medical Electronics Co., Ltd Respirator and method for calibrating flow rate measuring component thereof
WO2009119449A1 (ja) 2008-03-26 2009-10-01 国立大学法人 九州工業大学 気管チューブ維持管理システム
US10350379B2 (en) * 2008-06-05 2019-07-16 ResMed Pty Ltd Treatment of respiratory conditions
US8528552B2 (en) * 2008-12-01 2013-09-10 Dräger Medical GmbH SPO2 control with adaptive linear compensation
JP2011038793A (ja) 2009-08-06 2011-02-24 High Pressure Gas Safety Institute Of Japan ガス遮断装置
US20110265793A1 (en) * 2010-04-30 2011-11-03 Haveri Heikki Antti Mikael Method and arrangement for maintaining volume of breathing gas in a desired level
US10279133B2 (en) * 2011-07-02 2019-05-07 Drägerwerk AG & Co. KGaA Process for checking the function of a respiration system
US9259545B2 (en) * 2011-11-05 2016-02-16 Drägerwerk AG & Co. KGaA Process for checking the function of a respiration system
US9999742B2 (en) * 2012-04-10 2018-06-19 Fisher & Paykel Healthcare Limited Combination CPAP and resuscitation systems and methods
US20160193438A1 (en) * 2013-09-04 2016-07-07 Fisher & Paykel Healthcare Limited Improvements to flow therapy
US20180104426A1 (en) * 2015-03-31 2018-04-19 Fisher & Paykel Healthcare Limited Methods and apparatus for oxygenation and/or co2 removal

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Chinese Office Action issued in CN 201680051327.9 dated Dec. 26, 2019.
International Preliminary Report on Patentability issued in PCT/EP2016/070572.
International Search Report Issued in PCT/EP2016/070572.
Japanese Office Action issued in JP 2018-511656 dated Mar. 30, 2020.

Also Published As

Publication number Publication date
EP3344317A1 (de) 2018-07-11
JP2018533999A (ja) 2018-11-22
EP3344317B1 (de) 2020-10-28
DE102015216895A1 (de) 2017-03-09
CN107949412A (zh) 2018-04-20
US20190192796A1 (en) 2019-06-27
WO2017037152A1 (de) 2017-03-09
JP6840736B2 (ja) 2021-03-10
CN107949412B (zh) 2020-12-18

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